By D. Leo Pyle, Peter J. Fryer, Chris D. Reilly
This publication covers many matters within the box of nutrients know-how, together with strategy layout, danger and possibility research, warmth and mass move and nutrients rheology. every one part conscientiously explains the procedures mentioned and covers intimately a lot of their very important functions within the nutrients undefined. Accompanying the publication is a pc-compatible laptop diskette, containing brief programmes of use in making plans techniques. "Chemical Engineering for the meals undefined" can be an invaluable textual content for all these operating in nutrition processing and for these instructing and learning this crucial topic.
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Extra resources for Chemical Engineering for the Food Industry
005kg water/kg dry air is heated to 150°C before entering the drier. The air stream leaves the drier at 95°C, and the solids product leaves at 70°C. Neglecting any heat losses, calculate the inlet liquid flow, the air flow and the exit humidity of the air stream. Set up an overall summary mass and energy balance. 2kJkg- 1 K-1 evaporation of water at O°C = 2500 kJ kg-1 43 ENERGY BALANCES Solution Basis: 100 kg spray dried product Datum: O°C; liquid water. Process diagram (Fig. 3 where ~= =~g+ 4 humidity of exit stream.
I . - q =====:> Air15°C • Product broth 35°C • Fig. 9: yeast fermenter. 29 kg m-3 , Mean specific heat capacity: 1 kJkg-1 K-1. 804 kg m-3 . Solution Basis: feed rate of 50 kg min- 1 Datum: 25°C; inputs at their standard states; liquid water. 5 consumed). 5kW The results of the calculation are summarized in the table below, with the same datum of 25°C and the reagents. 5. Here we consider the reactor only. Glucose enters in 40% aqueous solution at 60°C; there is no recycle. e. Q = 0). It is assumed that the specific heat capacity of the liquid stream is the same as water (cp = 4.
E. elements or inerts) are conserved. It is noteworthy that the closure of the mass balance in this example is not perfect. One reason is that the overall stoichiometry does not have the same fundamental significance as a typical single chemical equation, such as Nz + 3Hz ~ 2NH3 • The equation quoted above is the net result of many simultaneous and parallel reactions, not just one; moreover, a C-mole of cells is a very different concept from a mole of a chemical or biochemical compound, and must be empirically determined.
Chemical Engineering for the Food Industry by D. Leo Pyle, Peter J. Fryer, Chris D. Reilly